Backend Software Engineer

About Aurora Solar Aurora Solar builds software that helps solar professionals design and install solar systems for homes and businesses. The platform combines data and technology to simplify the solar adoption process. Aurora’s tools have supported the design of millions of solar projects, making it easier for companies to sell, plan, and complete installations efficiently. The company has been named one of 'The Best Remote Companies to Work for in 2025' by BuiltIn.com and holds Certified Green Business (CGB) status from the city of San Francisco. Aurora Solar is committed to advancing the global shift toward solar energy. Team Overview The Install Ready Design team develops automation and compliance solutions for solar design. This group manages a platform that produces construction-ready plans for residential photovoltaic (PV) and storage systems, ensuring every design meets industry codes, standards, and manufacturer requirements. Team members work in a collaborative, respectful setting that values growth and encourages new ideas. Role Overview This hybrid Software Engineer role is based in Warsaw, Poland. The position focuses on building backend systems that support the next generation of solar installations. Engineers on this team address complex technical challenges and create reliable tools that shape how solar projects are designed and delivered. Key Responsibilities Develop and launch new features to boost platform performance and accuracy. Work with partners across the solar industry to streamline project workflows. Grow the capabilities of Aurora’s solar design platform. Help build new products that change how solar systems are designed and deployed. Take operational responsibility for team-owned services, including participating in an on-call rotation.

Waymo is a pioneering autonomous driving technology company dedicated to becoming the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, Waymo has been committed to developing the Waymo Driver—The World's Most Experienced Driver™—to enhance mobility access and significantly reduce traffic-related fatalities. The Waymo Driver powers our fully autonomous ride-hailing service and can be integrated into a variety of vehicle platforms and use cases. With over ten million rider-only trips completed, our technology has autonomously driven more than 100 million miles on public roads, complemented by tens of billions of miles in simulation across more than 15 U.S. states.The Waymo Compliance and Readiness team plays a crucial role in ensuring safe and enjoyable experiences for all riders. In this position, you will collaborate closely with the Operations team to identify and mitigate issues such as lost items or passengers being seated incorrectly, leveraging advanced data pipelines and machine learning models.We are seeking a Staff / Lead Software Engineer with expertise in backend development and experience in building machine learning data pipelines. In this hybrid role, you will report to an Engineering Manager.

Role Overview Sigma Software Group is seeking a Lead Principal Software Engineer with a focus on Interior Design software. This position is based in Warsaw. The role centers on leading software development efforts that improve both the user experience and the core functionality of interior design applications. What You Will Do Guide and oversee software projects aimed at enhancing interior design tools. Collaborate with cross-functional teams to define technical requirements and deliver high-quality solutions. Ensure development meets rigorous quality standards throughout the project lifecycle. Mentor junior engineers and encourage adoption of best practices within the team. Shape the technological direction of projects, influencing how designers interact with and benefit from Sigma Software Group’s products. Impact Your leadership will help designers create visually impressive and efficient spaces. The solutions developed will support both ease of use and strong functionality for end users.

Join our dynamic team at Ramboll as an Electrical Engineer specializing in Low Voltage Installations Design. You will have the opportunity to work on innovative projects and contribute to the development of sustainable solutions in electrical engineering.Your responsibilities will include designing low voltage installations, collaborating with multidisciplinary teams, and ensuring compliance with industry standards.

Join our dynamic team as a Senior Electrical Engineer, where you will leverage your expertise in electrical installations and network design. You will be responsible for delivering innovative engineering solutions, ensuring compliance with industry standards, and contributing to the successful execution of projects. Collaborate with multidisciplinary teams to drive project excellence and enhance client satisfaction.

About Aurora SolarAt Aurora Solar, we are dedicated to pioneering a future where solar energy is accessible to everyone. Our award-winning software empowers solar professionals by harnessing the power of data and technology, simplifying and streamlining solar adoption. To date, our software has facilitated the design of millions of solar projects, enabling solar companies to efficiently sell, design, and install residential and commercial solar systems with unmatched accuracy and scalability.Recognized as one of "The Best Remote Companies To Work for in 2025" by BuiltIn.com, and honored for the second consecutive time as a Certified Green Business (CGB) by the city of San Francisco, we are committed to facilitating the global transition to solar energy.About the TeamJoin us as we redefine solar design by creating automated, compliant, and installation-ready solutions. Our team is responsible for delivering construction-ready designs for residential PV and storage systems, ensuring that every layout adheres to relevant codes, standards, and manufacturer specifications. We cultivate a collaborative and respectful work environment that encourages boundary-pushing and mutual growth.About the RoleAs a Senior Software Engineer on our Install-Ready Design team, you will architect and enhance backend systems that will drive the next wave of solar installations. You will address complex challenges with precision, creating tools that are robust, reliable, and impactful. This is a hybrid position based in Warsaw, Poland.Your ImpactDesign and implement new features to improve the performance and accuracy of our platformCollaborate with key partners across the solar ecosystem to enhance end-to-end project workflowsDevelop new functionalities for our leading solar design platformLead the development of pioneering greenfield products that redefine solar system design and deploymentAssume operational responsibility for the services managed by your team, including participation in an on-call rotationWhat You Bring5+ years of professional experience in software engineeringProficient in writing high-quality, maintainable codeExperience with backend technologies and frameworksStrong problem-solving skills and the ability to work collaboratively in a dynamic environment

Role Overview Sigma Software Group is hiring a Senior Data Engineer in Warsaw to support data-driven work in the interior design sector. This position focuses on building and maintaining data solutions that help teams uncover insights and guide decisions. What You Will Do Design and implement data pipelines tailored to interior design projects Work closely with teams from different disciplines to optimize how data moves and is used Monitor and maintain data integrity throughout systems Apply advanced analytics to support new and creative design strategies Collaboration and Impact This role offers the chance to work alongside professionals from various backgrounds, contributing technical expertise to creative projects. The work directly supports innovation and better decision-making in interior design.

Join our dynamic team at Ramboll as an Electrical Engineer specializing in Overhead Line Design. You will be integral in designing and implementing overhead power lines that meet the highest standards of safety and efficiency. Your expertise will directly contribute to our sustainable energy solutions.

Waymo is revolutionizing the future of transportation with our cutting-edge autonomous driving technology. As a pioneer in this field, we aspire to be the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, we have dedicated ourselves to developing the Waymo Driver—The World’s Most Experienced Driver™—which enhances mobility access while aiming to prevent the tragic loss of lives due to traffic accidents. Having completed over ten million rider-only trips and driven autonomously for more than 100 million miles on public roads, we are ready to take the next step in our journey.Join our dynamic Waymo Commercialization team and play a crucial role in shaping the future of transportation! We are seeking an enthusiastic Staff Software Engineer who is eager to contribute to the evolution of our core ride-hailing and fleet management systems.In this hybrid role, you will engage in cross-disciplinary collaboration, working alongside technical teams (mobile applications, cloud backends, and the Waymo Driver) and functional departments (operations, product, legal, partnerships, policy, and privacy) to develop and implement vital infrastructure for our business.

As a Software Validation Engineer III at Collabera, you will play a critical role in ensuring the quality and reliability of our software solutions. You will be responsible for developing and implementing validation strategies, conducting thorough testing, and collaborating with cross-functional teams to enhance product performance. Your expertise will contribute to continuous improvement initiatives and compliance with industry standards.

Join our dynamic team at Ramboll as an Electrical Engineer specializing in Primary Circuits Design. This is an exciting opportunity for a skilled engineer to contribute to innovative projects and work within a collaborative environment.As a key member of our team, you will be responsible for designing and implementing primary circuit systems that meet industry standards and client specifications. Your expertise will help shape the future of electrical engineering solutions.

Join our dynamic team at evooq as a Senior Software Engineer! In this role, you will leverage your extensive experience in software development to design, implement, and maintain high-quality software solutions that meet our client’s needs. You will collaborate closely with cross-functional teams, contributing to all stages of the development lifecycle. If you are passionate about technology and eager to make a significant impact, we want to hear from you!

Role overview SmartRecruiters is seeking a Senior Software Engineer with strong Python skills to join the team in Poland. This role focuses on building and enhancing scalable software that supports the company’s product suite. Senior engineers at SmartRecruiters play a key part in shaping technical decisions and work closely with colleagues from various teams. What you will do Design and implement software solutions using Python Work with product managers, designers, and engineers to deliver new features Promote development best practices and contribute to architectural choices Mentor junior engineers and help them grow technically Requirements Experience building scalable applications with Python Comfort working in a collaborative setting that can move quickly Interest in solving practical problems with technology Ability to share knowledge and support less experienced team members

JetBrains is hiring a Product Designer to focus on the .NET ecosystem. This position involves designing developer tools that improve workflow and make daily tasks more enjoyable. The role is open to candidates in Belgrade, Berlin, Limassol, Madrid, Munich, Prague, Warsaw, Yerevan, or remote within Germany. What you will do Collaborate with engineers, product managers, and fellow designers to build user-centered solutions for .NET products. Shape the visual and interactive aspects of developer tools, ensuring usability aligns with technical needs. Turn research findings and user feedback into clear, effective design concepts. About JetBrains JetBrains creates intelligent software tools used by millions of developers worldwide. The team emphasizes thoughtful design and practical problem-solving to support the work of software professionals.

Join Egis Group as an Assistant Designer in our dynamic bridge engineering team in Warsaw! In this vital role, you will collaborate with experienced designers and engineers to contribute to innovative bridge projects. Your responsibilities will include assisting in the design process, preparing technical documentation, and supporting project management tasks. This is an exciting opportunity to kickstart your career in civil engineering and make a tangible impact on infrastructure.

As a Senior Software Engineer focusing on AI Retrieval at Asana, you will play a pivotal role in designing and implementing cutting-edge solutions that enhance our AI capabilities. You will collaborate with cross-functional teams to build scalable systems that improve information retrieval and user experience. Your expertise in software engineering and artificial intelligence will help drive innovation and set new standards for efficiency and performance.

About the Role nearmap is hiring a Software Engineer in Warsaw. This team focuses on developing solutions for aerial imagery, working together to solve technical challenges and improve products. What to Expect Contribute to projects that advance aerial imagery technology Work closely with colleagues in a collaborative setting Engage with complex problems and help build practical solutions Who We’re Looking For Experience in software engineering Comfort working as part of a team Interest in tackling technical challenges This position is based in Warsaw.

About Us:RTB House stands as a pioneering performance demand-side platform (DSP), harnessing proprietary Deep Learning AI algorithms to empower brands in their growth journeys. As a market leader, we drive performance through Deep Learning across the entire purchase funnel.Established in 2012 and currently operating in over 90 markets, RTB House is firmly private-by-design, advocating for first-party advertising and a relentless commitment to innovation. Our end-to-end Deep Learning-powered AdTech products and solutions are tailored to maximize conversions, facilitate new customer acquisition, enhance engagement, and stimulate long-term demand for our global clientele.We are on the lookout for a talented Software Engineer with substantial backend and microservices development experience to join our dynamic team. In this role, you will design, develop, and maintain web applications, microservices, and internal tools, while also contributing to frontend development as necessary.

Location: PolandAbout Us:RTB House is a leading global technology company that specializes in cutting-edge marketing solutions for renowned brands and agencies across the globe. Our proprietary ad-buying engine, the first of its kind, utilizes Deep Learning algorithms to provide advertisers with exceptional results and to effectively meet their objectives at every stage of the marketing funnel.We invite you to join RTB House as the head of our AI Engineering Lab, a team dedicated to driving innovation through the latest advancements in Agentic AI. This position is designed for a proactive engineer and technical leader committed to architecting, developing, and deploying next-generation AI solutions that enhance engineering productivity.